Home / 123,543.20-170,489.53-66,954.58

Finding the Fourth Proportional to 123,543.20, 170,489.53 and 66,954.58

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Solution

The fourth proportional to 123,543.20, 170,489.53 and 66,954.58 is: 92,397.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,543.20 : 170,489.53 = 66,954.58 : x
  2. Step 2: Convert to fraction form
    123,543.20/170,489.53 = 66,954.58/x
  3. Step 3: Cross multiply
    123,543.20x = 170,489.53 × 66,954.58
  4. Step 4: Simplify right side
    123,543.20x = 11,415,054,875.55
  5. Step 5: Solve for x
    x = 11,415,054,875.55/123,543.20
  6. Step 6: Final answer
    x = 92,397.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.